R. Pillera
A5043093344- Particle Detector Development and Performance
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Gamma-ray bursts and supernovae
- Radio Astronomy Observations and Technology
- Particle physics theoretical and experimental studies
- Radiation Therapy and Dosimetry
- Pulsars and Gravitational Waves Research
- Earthquake Detection and Analysis
- Neutrino Physics Research
- Nuclear Physics and Applications
- Particle Accelerators and Free-Electron Lasers
- Atomic and Subatomic Physics Research
- Astro and Planetary Science
- Planetary Science and Exploration
- Atmospheric Ozone and Climate
- Photocathodes and Microchannel Plates
- Spacecraft and Cryogenic Technologies
- Electron and X-Ray Spectroscopy Techniques
- High-Energy Particle Collisions Research
- Image Processing Techniques and Applications
- Solar and Space Plasma Dynamics
- Ionosphere and magnetosphere dynamics
- Astrophysical Phenomena and Observations
Istituto Nazionale di Fisica Nucleare, Sezione di Bari
2019-2024
Polytechnic University of Bari
2021-2024
Gran Sasso Science Institute
2023
University of Trieste
2023
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
2023
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
2023
Universitat de Barcelona
2023
University of Salento
2023
Agenzia Spaziale Italiana
2023
Istituto Nazionale di Fisica Nucleare
2019
The Fermi Large Area Telescope (LAT) light curve repository (LCR) is a publicly available, continually updated library of gamma-ray curves variable Fermi-LAT sources generated over multiple timescales. LCR aims to provide publication-quality binned on timescales 3 days, 7 and 30 days for 1525 deemed in the source catalog first 10 years observations. consists through full likelihood analyses that model surrounding region, providing fluxes photon indices each time bin. intended as resource...
An incremental version of the fourth catalog active galactic nuclei (AGNs) detected by Fermi-Large Area Telescope is presented. This (4LAC-DR3) derives from third data release 4FGL based on 12 years E>50 MeV gamma-ray data, where spectral parameters, energy distributions (SEDs), yearly light curves, and associations have been updated for all sources. The new reported AGNs include 587 blazar candidates four radio galaxies. We describe properties sample outline changes affecting previously...
Abstract A dedicated R&D is ongoing for the charged particle identification system of ALICE 3 experiment proposed LHC Run 5 and beyond. One subsystems high-energy will be a Ring-Imaging Cherenkov (RICH) detector. The possibility integrating Cherenkov-based timing measurements currently under study. based on proximity-focusing RICH configuration including an aerogel radiator separated from SiPM array layer by expansion gap. thin high-refractive index window transparent material, acting as...
After large galaxies merge, their central supermassive black holes are expected to form binary systems. Their orbital motion should generate a gravitational wave background (GWB) at nanohertz frequencies. Searches for this use pulsar timing arrays, which perform long-term monitoring of millisecond pulsars radio wavelengths. We used 12.5 years Fermi Large Area Telescope data gamma-ray array. Results from 35 bright place 95% credible limit on the GWB characteristic strain 1.0 × 10 −14...
Abstract The measurement of cosmic rays at energies exceeding 100 TeV per nucleon is crucial for enhancing the understanding high-energy particle propagation and acceleration models in Galaxy. HERD a space-borne calorimetric experiment that aims to extend current direct measurements unexplored energies, such as protons one PeV. payload scheduled be installed on Chinese Space Station 2027. primary peculiarity instrument its capability measure particles coming from all directions, with main...
We describe the development of a future gamma-ray/cosmic-ray mission called Advanced Particle-astrophysics Telescope (APT). The instrument will combine pair tracker and Compton telescope in single monolithic design. By using scintillating fibers for wavelength-shifting to readout CsI detectors, achieve an order magnitude improvement sensitivity compared with Fermi but fewer channels, lower complexity. incorporating multiple imaging over very large effective area, also orders MeV other...
NUSES is a low Earth orbit pathfinder satellite for innovative particle detectors dedicated to the study of cosmic radiation, astrophysical neutrinos, Sun-Earth environment, space weather and magnetosphere-ionosphere-lithosphere coupling. The will host two instruments: Terzina Zirè. While focus on based detection ultra high energy extensive air showers, Zirè perform measurements electrons, protons light nuclei from few up hundreds MeV, also testing new tools MeV photons, monitoring possible...
The Advanced Particle-astrophysics Telescope (APT) is a mission concept of next-generation space-based gamma-ray and cosmic-ray observatory. We present the simulation instrument performance Antarctic Demonstrator for APT (ADAPT), proposed long-duration balloon based on small portion full detector. construct semianalytical model MeV-GeV background ADAPT observations from previous high-altitude experiments simulations upper atmosphere. find that dominated by albedo earth's In presence this...
The High Energy cosmic–Radiation (HERD) detector is one of the prominent space-borne instruments to be installed on-board Chinese Space Station (CSS), around 2027. Primary scientific goals regarding this initiative include: precise measurements cosmic ray (CR) energy spectra and mass composition, at energies up PeV range; contributions high gamma–ray astronomy transient studies; as well indirect searches for Dark Matter (DM) particles via their possible annihilation/decay detectable...
In this paper we will introduce the Terzina instrument, which is one of two scientific payloads NUSES satellite mission. serves as a technological pathfinder, hosting suite innovative instruments designed for in-orbit detection cosmic rays, neutrinos, and gamma rays across various energy ranges. The instrument itself compact telescope equipped with Schmidt-Cassegrain optics. Its primary objective to detect Cherenkov radiation emitted by Extensive Air Showers generated interaction high-energy...
The Advanced Particle-astrophysics Telescope (APT) is a planned space-based observatory designed to localize MeV TeV transients such as gamma-ray bursts in real time using onboard computational hardware. Antarctic Demonstrator for APT (ADAPT) prototype high-altitude balloon mission scheduled fly during the 2025-26 season. Gamma-ray-induced scintillations CsI tiles will be captured by perpendicular arrays of optical fibers running across both tile surfaces, well SiPM-based edge detectors...
We present simulations of the instrument performance Advanced Particle-astrophysics Telescope (APT), a mission concept $\gamma$-ray and cosmic-ray observatory in sun-Earth Lagrange orbit. The key components APT detector include multiple-layer tracker composed scintillating fibers an imaging calorimeter thin layers CsI:Na scintillators. design is aimed at maximizing effective area field view for measurements, subject to constraints on cost total payload mass. simulate based $3$-meter develop...
One of the goals new generation satellite-borne experiments is detection low-energy cosmic rays. This kind measurements can help to understand mechanisms behind solar flares and other space weather phenomena, which affect satellite communications power grids on Earth. A tracker based plastic scintillating fibers equipped with silicon photomultipliers (SiPMs) represents a viable option for this detectors. We designed prototype investigate performance different diameters, readout SiPMs strip...
The High Energy cosmic-Radiation Detection (HERD) facility has been proposed as a space cosmic-ray and gamma-ray detector, which will be installed on the China Space Station around 2027. HERD able to measure proton nuclei fluxes up cosmic ray knee region (about 1 PeV), electron + positron flux tens of TeV gamma rays above 100 MeV. CALO, homogeneous 3D segmented calorimeter, is core detector HERD. It consists about 7500 LYSO cubes with 3 cm side length, corresponding 55 radiation lengths (X0)...
A novel compact particle identification (PID) detector concept based on Silicon Photomultipliers (SiPMs) optimized to perform combined Time-of-Flight (TOF) and Ring-Imaging Cherenkov (RICH) measurements using a common photosensitive sensor is under development. The system consists of radiator layer separated from surface equipped with SiPMs by an expansion gap. thin glass slab, acting as second radiator, coupled the Cherenkov-based TOF measurements. We have built tested prototype including 2...
We characterize the performance of our computational pipeline for real-time gamma-ray burst (GRB) detection and localization aboard Advanced Particle-astrophysics Telescope (APT) -- a space-based observatory MeV to TeV astronomy its smaller, balloon-borne prototype, Antarctic Demonstrator APT (ADAPT), whose scientific focus will be transients. These instruments observe scintillation light from multiple Compton scattering photoabsorption photons across series CsI detector layers. infer...
We present a pipeline for fast GRB source localization the Advanced Particle-astrophysics Telescope. APT records multiple Compton scatterings of incoming photons across 20 CsI detector layers, from which we infer incident angle each photon's first scattering to localize its direction circle centered on vector formed by two scatterings. Circles are then intersected identify their common direction. Our pipeline, runs in real time low-power hardware, uses an efficient tree search determine most...
Abstract Cosmic rays are mostly composed of protons accelerated to relativistic speeds. When those encounter interstellar material, they produce neutral pions, which in turn decay into gamma-rays. This offers a compelling way identify the acceleration sites protons. A characteristic hadronic spectrum, with low-energy break around 200 MeV, was detected gamma-ray spectra four supernova remnants (SNRs), IC 443, W44, W49B, and W51C, Fermi Large Area Telescope. detection provided direct evidence...
On October 9, 2022, the brightest GRB ever detected, also called "Brightest Of All Time" (or BOAT), was detected by Fermi Large Area Telescope (LAT), providing an unprecedented rich dataset that will likely help to understand emission mechanisms underlying this class of extra-galactic objects. Some unique features 221009A include: 1) high-energy (up 100 MeV) observed during first episode (precursor) at GBM trigger time $𝑇_0$; 2) Several GeV events, including a photon, episode; and 3) very...
The Zirè experiment is part of the NUSES (NeUtrino and Seismic Electromagnetic Signals) space mission, proposed by Gran Sasso Science Institute (GSSI) in collaboration with Istituto Nazionale di Fisica Nucleare (INFN) Thales Alenia Space Italy (TAS-I), involving many Institutes Universities from Europe abroad. will perform measurements electrons, protons light nuclei few up to hundreds MeVs, for study low energy CRs, weather phenomena possible Magnetosphere-Litosphere-Ionosphere Coupling...
The High Energy cosmic-Radiation Detection (HERD) facility onboard the Chinese Space Station will provide high quality data on charged cosmic rays from few GeV to PeV energies and gamma above 100 MeV. HERD employ a Plastic Scintillator Detector (PSD) discriminate neutral particles help identify measure nuclei charge up iron. For these reasons, PSD needs have detection efficiency ($\sim99.998\%$) good resolution ($\sim30\%$ at low $Z$). During 2022 2023, beam test campaigns were performed...
We implemented a didactic experiment to study the angular correlation between two gamma rays emitted in typical $^{60}$Co radioactive decays. used NaI(Tl) scintillators, already available our laboratory, and low-activity source. The detectors were mounted on rails, with source at their center. first rail was fixed, while second could be rotated around performed several measurements by changing angle scintillators range from $90^\circ$ $180^\circ$. Dedicated background runs also performed,...